Brex vs. Ramp vs. Mercury
Three of the most-evaluated corporate card platforms for venture-backed companies, compared across company facts, pricing, card mechanics, rewards, spend controls, security and integrations — every cell sourced and re-checked from each vendor's public material.
Brex
AI-powered spend platform with cards, bill pay & treasury for scaling startups.
Ramp
Finance automation platform built to cut spend — cards, expenses & procurement.
Mercury
Banking-first platform; the Mercury IO card runs on your account balance.
Company facts
Pricing
Card features
Rewards & cash back
Spend controls
Security & compliance
Integrations
The verdict
All three remove the personal guarantee and run on real-time data — the right pick comes down to what you optimize for.
Highest credit limits, richest points program and global FX cards. The deepest platform if you'll grow into bill pay and treasury.
Visit BrexFlat 1.5% back, the strongest approval workflows and AI receipt matching. Built around actively reducing spend, not just tracking it.
Visit RampIf you already bank with Mercury, the IO card is the simplest add-on — fewest moving parts, no separate underwriting.
Visit MercurySources · 47 verified references
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